Helbing’s Sign is the curving inward of the Achilles tendon. This tendon attaches the calf muscle to the calcaneus or the large heel bone. Helbing’s sign is present in patients with over pronation syndrome.


Patient should be awake and cooperative to check for the Helbing’s Sign.

  1. Patient is standing while the test is being done.
  2. The examiner observes the patient’s Achilles tendons from behind.

The patient’s Achilles tendons are observed from behind.


Positive Helbing’s Sign

There is positive Helbing’s Sign when there is noticeable curving of the Achilles Tendon. This indicates over pronation syndrome.

Clinical Notes

When there is over pronation syndrome, the medial longitudinal arch will also appear to have fallen.